Cargando…

Dichlorobenzene: an effective solvent for epoxy/graphene nanocomposites preparation

It is generally recognized that dimethylformamide (DMF) and ethanol are good media to uniformly disperse graphene, and therefore have been used widely in the preparation of epoxy/graphene nanocomposites. However, as a solvent to disperse graphene, dichlorobenzene (DCB) has not been fully realized by...

Descripción completa

Detalles Bibliográficos
Autores principales: Wei, Jiacheng, Saharudin, Mohd Shahneel, Vo, Thuc, Inam, Fawad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society Publishing 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666263/
https://www.ncbi.nlm.nih.gov/pubmed/29134080
http://dx.doi.org/10.1098/rsos.170778
_version_ 1783275273077129216
author Wei, Jiacheng
Saharudin, Mohd Shahneel
Vo, Thuc
Inam, Fawad
author_facet Wei, Jiacheng
Saharudin, Mohd Shahneel
Vo, Thuc
Inam, Fawad
author_sort Wei, Jiacheng
collection PubMed
description It is generally recognized that dimethylformamide (DMF) and ethanol are good media to uniformly disperse graphene, and therefore have been used widely in the preparation of epoxy/graphene nanocomposites. However, as a solvent to disperse graphene, dichlorobenzene (DCB) has not been fully realized by the polymer community. Owing to high values of the dispersion component (δ(d)) of the Hildebrand solubility parameter, DCB is considered as a suitable solvent for homogeneous graphene dispersion. Therefore, epoxy/graphene nanocomposites have been prepared for the first time with DCB as a dispersant; DMF and ethanol have been chosen as the reference. The colloidal stability, mechanical properties, thermogravimetric analysis, dynamic mechanical analysis and scanning electron microscopic images of nanocomposites have been obtained. The results show that with the use of DCB, the tensile strength of graphene has been improved from 64.46 to 69.32 MPa, and its flexural strength has been increased from 97.17 to 104.77 MPa. DCB is found to be more effective than DMF and ethanol for making stable and homogeneous graphene dispersion and composites.
format Online
Article
Text
id pubmed-5666263
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher The Royal Society Publishing
record_format MEDLINE/PubMed
spelling pubmed-56662632017-11-13 Dichlorobenzene: an effective solvent for epoxy/graphene nanocomposites preparation Wei, Jiacheng Saharudin, Mohd Shahneel Vo, Thuc Inam, Fawad R Soc Open Sci Chemistry It is generally recognized that dimethylformamide (DMF) and ethanol are good media to uniformly disperse graphene, and therefore have been used widely in the preparation of epoxy/graphene nanocomposites. However, as a solvent to disperse graphene, dichlorobenzene (DCB) has not been fully realized by the polymer community. Owing to high values of the dispersion component (δ(d)) of the Hildebrand solubility parameter, DCB is considered as a suitable solvent for homogeneous graphene dispersion. Therefore, epoxy/graphene nanocomposites have been prepared for the first time with DCB as a dispersant; DMF and ethanol have been chosen as the reference. The colloidal stability, mechanical properties, thermogravimetric analysis, dynamic mechanical analysis and scanning electron microscopic images of nanocomposites have been obtained. The results show that with the use of DCB, the tensile strength of graphene has been improved from 64.46 to 69.32 MPa, and its flexural strength has been increased from 97.17 to 104.77 MPa. DCB is found to be more effective than DMF and ethanol for making stable and homogeneous graphene dispersion and composites. The Royal Society Publishing 2017-10-11 /pmc/articles/PMC5666263/ /pubmed/29134080 http://dx.doi.org/10.1098/rsos.170778 Text en © 2017 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
spellingShingle Chemistry
Wei, Jiacheng
Saharudin, Mohd Shahneel
Vo, Thuc
Inam, Fawad
Dichlorobenzene: an effective solvent for epoxy/graphene nanocomposites preparation
title Dichlorobenzene: an effective solvent for epoxy/graphene nanocomposites preparation
title_full Dichlorobenzene: an effective solvent for epoxy/graphene nanocomposites preparation
title_fullStr Dichlorobenzene: an effective solvent for epoxy/graphene nanocomposites preparation
title_full_unstemmed Dichlorobenzene: an effective solvent for epoxy/graphene nanocomposites preparation
title_short Dichlorobenzene: an effective solvent for epoxy/graphene nanocomposites preparation
title_sort dichlorobenzene: an effective solvent for epoxy/graphene nanocomposites preparation
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666263/
https://www.ncbi.nlm.nih.gov/pubmed/29134080
http://dx.doi.org/10.1098/rsos.170778
work_keys_str_mv AT weijiacheng dichlorobenzeneaneffectivesolventforepoxygraphenenanocompositespreparation
AT saharudinmohdshahneel dichlorobenzeneaneffectivesolventforepoxygraphenenanocompositespreparation
AT vothuc dichlorobenzeneaneffectivesolventforepoxygraphenenanocompositespreparation
AT inamfawad dichlorobenzeneaneffectivesolventforepoxygraphenenanocompositespreparation